Home / 10,558.08-15,811.20-7,261.92

Finding the Fourth Proportional to 10,558.08, 15,811.20 and 7,261.92

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Solution

The fourth proportional to 10,558.08, 15,811.20 and 7,261.92 is: 10,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.08 : 15,811.20 = 7,261.92 : x
  2. Step 2: Convert to fraction form
    10,558.08/15,811.20 = 7,261.92/x
  3. Step 3: Cross multiply
    10,558.08x = 15,811.20 × 7,261.92
  4. Step 4: Simplify right side
    10,558.08x = 114,819,669.50
  5. Step 5: Solve for x
    x = 114,819,669.50/10,558.08
  6. Step 6: Final answer
    x = 10,875.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.